1756-IB32 | Allen-Bradley ControlLogix Input Module

Features and Specifications - 1756-IB32 Module

General Specifications

• Inputs: 32 (16 points/group)
• Voltage Category: 12/24V DC sink
• Operating Voltage Range: 10…31.2V DC
• Nominal Input Voltage: 24V DC

Input Delay Time (Screw to Backplane)

• Off to On:
  • Hardware delay: 380 µs max + filter time
  • User-selectable filter time: 0 ms, 1 ms, or 2 ms
• On to Off:
  • Hardware delay: 420 µs max + filter time
  • User-selectable filter time: 0 ms, 1 ms, 2 ms, 9 ms, or 18 ms

Current and Power

• Current Draw @ 5.1V: 120 mA
• Current Draw @ 24V: 2 mA
• Total Backplane Power: 0.66 W
• Power Dissipation, Max: 6.2 W @ 60 °C (140 °F)
• Thermal Dissipation: 21.1 BTU/hr @ 60 °C (140 °F)

Electrical Specifications

• Off-state Voltage, Max: 5V
• Off-state Current, Max: 2.27 mA
• On-state Current, Min: 4.8 mA @ 10V DC
• On-state Current, Max: 5.5 mA @ 31.2V DC
• Inrush Current, Max: 250 mA (decaying to < 37% in 22 ms, without activation)
• Input Impedance, Max: 5.67 kΩ @ 31.2V DC

Performance Specifications

• Cyclic Update Time: 200 µs to 750 ms
• Change of State: Software configurable
• Time Stamp of Inputs: ±200 µs
• Isolation Voltage:
  • 250V (continuous), reinforced insulation type, inputs-to-backplane
  • 250V (continuous), basic insulation type, input group-to-group
  • No isolation between individual group inputs

Physical Specifications

• Module Keying: Electronic, software configurable
• Removable Terminal Block: 1756-TBCH, 1756-TBS6H
• RTB Keying: User-defined mechanical
• Slot Width: 1
• Wire Category: 1 (on signal ports)
• Enclosure Type: None (open-style)
• Temperature Code: T4
• Reverse Polarity Protection: Yes

Environmental Specifications

• Relative Humidity: 5 to 95% non-condensing (IEC 60068-2-30, Test Db, Unpackaged Damp Heat)
• Vibration: 2 g @ 10 to 500 Hz (IEC 60068-2-6, Test Fc, Operating)
• Shock, Operating: 30 g (IEC 60068-2-27, Test Ea, Unpackaged Shock)
• Shock, Nonoperating: 50 g (IEC 60068-2-27, Test Ea, Unpackaged Shock)

Emissions and Immunity

• Emissions: IEC 61000-6-4
• ESD Immunity: IEC 61000-4-2, 6 kV contact discharges, 8 kV air discharges